Apparatus for decorating glass surfaces



March. 19, 1929. K, WARGA 1,705,512

APPARATUS FOR' DECORATING GLASS sURFAcEs Filed Deo. l, 1927 INVENTOR ATTORNEY `Patented Mar., i9,

KALMAN raam Amr orme-E. i

WARGA, or New YORK, N. Y., Assrelvonv'ro CLARENCE W. BICKFORD AND MARY Blossom), BOTH or osonoLA MILLs, PENNsYLvAnrA- f APPARATUS FOR DECORATING GLASSKSURFACS.

y Application mea December 1', 1927. sriai No. eeaoos; n'

The present invention relates to an'appa-- ratus for decorating glass surfaces, more particularly surfaces of glass containers, such as bottles or the like, which are manufactured by the aid of molds. The invention pertains more particularly to an apparatus for carrying out the method of decorating glass surfaces described and claimed in an application for `Letters Patent filed by me on November 17, 1927, Ser. No. 284,054.v

In the said application a method of fixing designs on glass objects is described which consists in, generally, forming the v design -in color films, containing eacha mineral nement and a vitreous bindine` material v said films being printed or otherwise provided on tissue paper and being all fusiblev at the same temperature. The design is'applied to the glass object whilethe latter isv in hot state and within a mold, and the said films are fixed by heat to said glass object while the latter gradually cools in its mold. Going more into details, the several steps of the method describedv in the said application are performed as follows: The design is produced on tissue paper by means of mineral colors or pigments which are incorporated in or mixed with fluxes or binders of or containing vitreous material. Thesecolors or pigments are mixed with a suitable rquantity of flux so as to fuse atthe same temperature, or, in other words, so as to have the same melting point. The design is printed upon the paper, preferably, by lithographing,;the darkest colo-r in the series being first applied to the paper, the next lightervthereafter, and

so on until the lightest color is reached inthe last printing step. After all the colors have been applied, the printed surfacemay be cove ered with a varnish', while on the back of the paper` is spread a layer of rosin. A glass container, manufactured by pressing or blowing, is removed, in hot state, from its mold prevvio'us toits entry into the annealingleer.v

The printed paper, prepared asr above stated,

Vis attached by the rosin layerV to theinterior surface of a mold in .proper relation to the design, a reversed image must gbe produced.

The main objectof the present invention is to provide a simpleapparatus for removing n the printed paper or labels, one after the n other, from a stack or pile and depositing the same into the molds prior to the insertion of the hot containers thereinto'.

Another object of the invention is to projvide a devicevof the character described in which'the means for transferring the labels from the stack or pile to the mold 1s remove lably mounted'on the apparatus, sothat it may be replaced by others according to the sizes of the molds and to the latter. v Y

A further object of the invention is to pro vide a label transfer means which removes the labels from the stack or pile by suction, and is provided with asurface giving the label a shape, prior to its insertion into the mold, conforming eXactlyt-o that portion of parting fromthe spirit or'sacrificingany 'of the advantages of the invention. 1

One ofthe many possible embodiments of the labels'to be fed parts and details of construction within the vscope of the appended claim, without dethe invention is illustrated inthe accompa- Dying drawings, in which :'A n l Y Figure l is a side elevation of a portion of a conveyor on which the molds with the hot containers therein travel to a second con veyor, on .which the said molds and the elements therein travel through the annealing leer; Fig. 2 isa central vertical section taken through a label 'supporting table, showing the Ytion and in operative relation t-o the said stack; Fig. 3 is an'elevation of anopen mold showing one ofthe labels attached to the inner surfacethereof; Vand Fig. t -is ahori- Zontal section taken through the said mold and the label transfer'means inoperative rel' lation to a sectionjof said mold.-

Referring nowto the drawings, the lnu-y merel "10 indicates `a frame,fthe table" portion j 10o labelremovlng and transfer means 1nv elevaof which is onstitute'd by a belt conveyor 11, which 1s actuated in any suitable manner so as to carry ob]ects placed onto the said' conveyoli the' direction-jef the arro'iv4 shown in Fig. 1 of the drawings. @nto this conveyor' are placed, preferably, in upright positions molds 12, suitably shaped and constructed for forming glass containers.v In the case illus-` trated these moldsare of the type for for'iiiing' bottles, each mold consisting ofv two sections 13 and 14, which are hinged together at 15.

eans; not shown, are'A provided forkeeping the mol'dpsections inl closing' positions. The

, therein travel through lower temperatures and are discharged at the outlet of the leer at nearly. atmospheric; temperature'. y

The paper labels 19, prepared as above stated, are placed in a sta-ck, with their printed faces'facing up, onto a table 2Q,the latter 'being' slidably rmounted within a housing 21,

the front wall 22 of'whichgis provided with a forwardly extending lip 23. The table and the paper stackthereon are automatically raised by a spring mechanism 24, the uppermost label of the stack being thus brought into Contact with a stop plate 25 on the sa'id housing'. This Nstop pla-te partly covers the uppernfiostlabel, it extending from therrear wall 26 of the housing toward the front wall 22 thereof, but stopping short of the said front wall sol as to. permit the label transfer means to enga ge the uppermost label of the stack,- as will be hereinafter described. The

stop plate `is provided with an aperture 27,

through which projects into the housing a roller 28", mounted uponthe Vforked end 29 of an arm30, which is adjustably mounted upon a horizontally extending b'ar 31, the latter being fixed to the rear wall 26'of the housing. This roller engagesthe rear edge fof the label next to the top label and prevents' the labels lying underneath the top label from being withdrawn from the housing when the Vtop label is being removed from the stack.`

. The mechanism for transferring` the labels,

A- one after the other, from the stack to the moldsand applying the same to the interior surfacesy of the molds in proper rel-ation to the glass objects to be placed thereinto comprises an aiiesu'ction operated` device, includinga closed casing having a' pluralityV of small perforations 33 in oneo'f its faces, de-

noted by the numeral hthe said face being curved and its curvature conforming to that of the inner surface 35 of that 'section of the drawings," and suction produced in the said casing, When now the casing is moved in the direction of the arrow shown in Fig. 2 of the drawings, the top label is removedfrom the pile, the suction causing the said label to co`ntact with the curved surface of the casing 32 throughout its length and thereby to assume theexact shape which it is total-te on in the mold. TheA casing, with the label thereon, is

then brought into a section of the open mold,

as shown in Fi it Yof1 the drawings, the label being brought into Contact with the inner surface of the said mold section at the place where it is in vproper position in relation to the bottle to be inserted into the mold. After Vthis the ,air suction is discontinued., whereby,

upon withdrawing the easing 32 from the mold, the label adheres tothe said mold section,- a-s shown inlFigf. 3 of the drawings. As l stated above, the back ofthe label has applied to it a layer of resin and this layer causesthe sz'ridlabel to adhere to the mold.- After the label has been applied to'lthemold, a bottle is placed th'ereinto its hot state, that is to say inthe statefin which it is removed from the mold after the molding or blowing operation.' The moldis then closed and placed onto the conveyor 11, whichcarries itto the stationa-ry table section 16. Fromthe latter it is advanced to the conveyorl-T, whichr is disposed inan. annealing leer. ,In passing through the leertheseveral colors or pigments melt and themselves to the'glass container, The paper is consumed while the fixingoperation takes 'place'.`

Returning now to the label removing operation, it will be noted that as the top label of the stack is removed from the housing 21,

the labelsv below the top label'arevcombed out, that is to say those lab-els which are in alignment with the lip 23 are moved somewhat forwards until they are stopped by the said lip.v Y

VIt is obvious that, while in the drawings a 'mold'has been illustrated for receiving bottles having cylindrical body portions and consequently alabel transfer casing has been shown having a curved surface,` the curvature of Vwhich correspondsto that of the inner surface of the mold,4 the invent-ion isA applicable f to moldsV and label transfer means of any l VVother configuration, the f invention lying mainly inthe provision'of a label transfer :means having aperforated surfaeeforimparting to the label they exact shape which it" is to assume inthe mold, It is also obvious that, while herein a label stack support of a specific construction has been describechany other construction maybe made use of without departing from the invention.

Attention is called to the fact that the label transfer Casing 32 is removable from the hose 37. The purpose of this arrangen'ient is i mold, each label having applied to o-ne of its faces a design of a mineral pigment and flux and on its other face an adhesive which is adapted to be rendered orgerativel@7 heat, said `mechanism comprising a casing having a perforated surface conforming 1n configura` tion to that portion of theinterior surface of the mold to which the label is to be applied,

and suction-operated means connected to said casing which, when in operation, causes the label to adhere with its design bearingl face to the perforated surface of said casing and to assume the shape which it is to take in the mold, the adhesive on the label being exposed to be brought into Contact with the interior heated surface of the mold to be left thereon when said suction operating means is ren-y dered inoperative.

Signed at New York, in the county of New York, and State of New York, this 28th dayl of N ovember,l A; D.

` KALMAN WARGA'.' 

